Journal of Dental Research, Vol 55, 328-332, Copyright © 1976 by International & American Associations for Dental Research Online Journals
Adherence of ceramic coatings on chromium-cobalt structures
B. Dunn and M. H. Reisbick
A method has been developed for the consistent adherence of flame-sprayed
ceramic coatings to Vitallium. The critical step involves etching the metal
by the anodic polarization technique. This procedure allows complex
geometrics to be corroded evenly, and, by suitable choice of etching
solution and conditions, enables any metal to be substituted. The bond is
capable of sustaining more severe deflections than are experienced during
intraoral function. Despite the number of cracks generated during testing,
the ceramic layer remains intact. The ceramic-metal bond is mechanical. The
corroded surface provides greater surface area, thus permitting a number of
retention sites. Analysis of the ceramic microstructure finds it to be
suitable for tissue ingrowth.
